Calibration Standard Kit Back Catalog number: 52090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12-B-78-CDF 1,2-Dibromo-7,8-dichlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request FPEPA 3-Perfluoropentyl propanoic acid (5:3), 1.2ml x 50ug/ml, methanol Price on request 97051 Formaldehyde Price on request